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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
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Experiments show that many plants tolerate a wide range of light conditions.
laboratory experiments using electric shocks
a series of experiments on animals
Researchers now need to conduct further experiments.
Let's try an experiment – we'll only use the Internet on the weekend.
an experiment in tax reform
This is the American English definition of experiment. View British English definition of experiment.